Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its__________________?
Correct answer: C. Machinability
- A. Corrosion resistance
- B. Tensile strength
- C. Machinability
- D. Compressive strength
Explanation
Lead, sulphur and phosphorus form inclusions or compounds that make low-carbon steel easier to cut, drill and shape. This improves machinability, although excessive amounts can reduce toughness.
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